Table 3 ICC for test-retest study
From: Validity and reliability of the Portuguese version of the modified Migraine Disability Assessment
Because of headaches, during last month, | Test (n = 92) | Retest (n = 30) | Correlation | |||
|---|---|---|---|---|---|---|
Mean | Median | Mean | Median | ICC | with MIDAS-P | |
[1] # missed days of work or school | 2.07 | 0.0 | 1.60 | 0.0 | 0.9972 | 0.6971 |
[2] # days with productivity reduced by half or more | 7.90 | 5.0 | 8.50 | 4.5 | 0.9572 | 0.8281 |
[3] # missed days of household work | 5.64 | 2.0 | 9.03 | 3.0 | 0.9812 | 0.7491 |
[4] # days with household work productivity reduced by half or more | 9.47 | 5.5 | 9.60 | 6.0 | 0.9502 | 0.8531 |
[5] # missed days of family, social or leisure activities | 3.54 | 2.0 | 2.53 | 1.0 | 0.8912 | 0.5641 |
MIDAS- P index | 28.5 | 16.0 | 29.2 | 20.0 | 0.9032 | |
[6] # days with headache | 9.78 | 6.0 | 10.5 | 10.0 | 0.8322 | |
[7] In a 0–10 scale, on average, how painful were these headaches | 7.49 | 8.0 | 8.07 | 8.0 | 0.7802 | |